Improved device for annealing car-wheels



UNITED STATES PATENT EEICE.

H. V.MO0RE, OF RIDGEPORT, GNNECTICUT.

Specification forming part of Letters Patient No.V IBLSSS, 'datedDecember 5, 1865.

To all climalit mayrconcem:

Be it known that I, H. W. MOORE, ot' Bridgeport, in the county ofFairfield andState-of Connecticut, have'invented a new and usefulprocess -for annealing, or for annealing and cooling car-wheels that arecast with achilled tread or run; and I do hereb7 declare the followingto be a full, clear, and exact descripried on. Fig. 3 represents asimilar top view,

with a top View of` the wheels placed therein.

Simi-lar' letters of reference where they oc cur in the separatejligures denote like parts in all cases.

Many p'lanshave been devised For cooling car-wheels that are cast with achill, so as to obviate the strain incident to unequal shrinkin g andpreserve the chilled tread or rim; and however much may have beenaccomplished by others there stillre1m1iuedinuehto be done before aperfect wheel could be produced. l. believe Lhavc genes stepbeyond anyof those who preceded me, and have produced a wheel that. has morestrength and less strain in its web than ang,v others, the metal in theweb being annealed so as to approximate malleable iron, while, at thesaine time, the chill in thc rim or tread and flange is perfectlymaintained.

My process consists in removing the wheels from the ila-sl: or moldwhile still hot and plac- 4 ing them in a-pile in a pit or ense, anddividing the portion that is to be annealed from the portion that iscast in a chill by a metal or other suitable ring or partiti-on andfilling the inside of the ring or partition with charcoal andthe Outerside with sand or other non-conducting material, by which means theplate or web of the Wheel, by the burnin gslowly ofthe charcoal, becomesannealed and of the nature of malleable iron, while the chill ispreserved in its original stale. l

To enable others skilled in the art to make and use my invention, l willproceed to describe the saine, with reference to the drawings. Arepresents a permanent case, in which hay process may be carried out. It is composed of an outer 'shell of iron, a, lined with lire-brick,1;,and standing upon apermanentba-se, c and B represents the car-wheelsplaced therein, there being a ring, C, between each of the adjacentwheels tov keep them vseparate and to detne the line between the portionto be an'- nealed and the portion to be let'tin the chilled state. Asthese wheels and rings are placed one upon the other in the case or pitcharcoal in lump or in liner pieces isl thrown into the space inclosedby the ring, as shown by the lines (l el in Fig. 1, while sand or otherequivalent non-conducting material isput in, on, around, and behind thetread and lange ot the wheel, as shown at e c iu said Fig. 1, and thusthe chilled portion is preserved from injury by being heated in contactwith'burnin g material, which will always soften or draw out `the chillto some extent.

The charcoal is ignited by the red-hot iron of the wheels and burnsslowly' in a. semisniothered state, which carbonizes the portion ot' thewheel it is in contact with and prevent-s any straininthe, wheel causedbyunequal shrinking, the sand `outside ot' the ring` preventing any suchannealingprocess to the tread and ilange or rim ofthe wheel.`

By this process I can make a very strong, and, at the same time, a verlight wheel.

What l claim, and desire to secure by Letters Patent, is A Annealing thecenter or plate of a car-wheel 'so as to render itquite malleable,without annealing or injuring the chillor tread of the wheel, by meansot' an annular partition or wall interposed between the wheels,theinside of the wall having charcoal and the outside sand or theirsubstantial equivalents placed therein, as andv l'or the purposesubstantially as described.

' ll. W. MOORE.

Witnesses E. A. PARNETT, W. S'. KrmWLToN..1

